Asphaltum-heater apparatus



March 18 1930f I H. H. STRIETMANN 1,751,452

ASPHALTUM HEATER APPARATUS Filed May 9, 1925 2 Sheeis-Sheet 1 4r By.

4 4 I r I wa Mar. is,-19.3o

UNITED STATES .I-PATENOT' OFFICE HERMAN H. S TBIETMANN, OF CINCINNATI, OHIO,.ASSIGNOR TO LITTLEFORD BROTHER-S; OF CINCINNATI, OHIO, A FIRM COMPOSED OF JOHN S. LITTLEFORD, THOMAS S.

-=LITTLEFORD, JOHN S. LITTLEFORD, 33.,

AND ROGER S. LITTLE-FORD ASPHALTUM-HEATER ATPARATUB Application filed May 9,

My invention relates to .improvements in' apparatus to handle or pump asphaltum and dered fluid by the application of heat thereto. One of its objects'is to provide improved means'adaptd to feed the asphaltum or other substance under control through a discharge conduit from the container in which it is heated to another container or directly to the place where it is to'be applied. Another object is to provide an improved power feeding a paratus adapted-to be detachably or interc angeably applied to asphaltum or similar containers to ositively feed the fluid object is to provi e an improved positive contents therefrom as required. Another object is to provide an improved positive power feed apparatus which .shall be substantially free from leakage and losses due to leakage and .available to feed the fluid portion of the contents from a container'at will. My invention also comprises certain details of form and combination of com onents, all of which will be fully set forth 1n the description of the accompanying drawings, in whlch:

Fig. 1 is a vertical section through an asphaltum heating container embodying myimprovements.

Fig. 2 is a plan view 'of a portion of the sameand illustrating a modification.

Fig. 3 is a new similar to Fig. 1, illustrat ing .a modification.

' The accom anying drawings illustrate the preferred em odiments of my invention in whlch 15 represents an asphaltum container,

' as for instance an as haltum tank-mounted upon a truck and emp oyed for road construction and repair. The container 15 is provided with a fire box 16 and flue' 17 and fuel oil burner 18, or other equivalent meansto heat the contents of the container 15.

A supporting frame consisting of the rods 19 and 20, the shoes 21 and 22, and acrossbar 24, rests detachable by reason of its own weight across the top of the container with the shoes 21 and 22 resting res ectively upon opposite sides of the rim 26 o the container. The .shoes are also provided with depending projections 25 and 27 outside of the rim 26 1925. Serial no. 29,242; I to (prevent shifting en wise u on sai container. The shoe 22 serves to ind the'rods 19 and 20 together at one end while the cross-bar 24 serves to bind said rods together near their opposite ends. The extreme end of rod 19 is attached also to the shoe 21. The end of rod 20 where it projects through a perforation in the crossbar 24 is threaded into one end of a metal pipe T 28 to serve as a rigid support for said pipe T. A valve or'cock 29 is attached to one end of the T 28 and is rovided with a hand lever 30 by means of which the cockmay be opened orcloscd. A pi e elbow 31 outside of t e shoe 21is'attache to the cook 29 by means of a short pipe nipple 32 passing of the supporting frame through a. perforation in the shoe 21, whereby the T 28, cook 29, and nipple 32 become in effect an extension of the rod20oto connect the rod 20 rigidly with the shoe 21.

A pipe section 34 isthreaded from below into the T 28, and at its lower end is threadedly connected to an elbow 35 forming part of the frame or casing 36 of a fluid power pump. A pipe elbow 37 is loosely threaded into a boss 38 forming the intake of the pump casing so as topermit the elbow 37 to have a swiveled joint or movement relative to-the pump casing. A pipe section 40 is threaded into the elbow 37, and its opposite end is connected to a coupling member 41 which is pivotally attached by means of' a bolt 42 to a foot or intake plate 43 which rests by means of short legs or feet 44 upon the bottom'of the container 15 and enables the fluid asphaltum near the'bottom ofthe container 15 to enter the intake port 45 of the foot plate and thence to flow through the cou ling member 41, pipe section 40 and elbow 3 to the pump casing, and also enables the elbow 37 and the foot plate 43 to swivel so as to automatically adjust themselves to position as the pump is lowered into' the container 15, and its supporting frame is brought to rest upon t e rim of said container. r

A hand wheel 50 and horizontal drivin shaft 51 are journaled near one end of said shaft to the shoe 21 and near the opposite end of said shaft to the cross-bar 24. A beveled gear 52 on the shaft 51 meshes with a beveled gear 53 on a vertical shaft 54. The upper end of the shaft 54 is journaled to the crossbar 24, and the lower end of said shaft is journaled in the upper end of the pump casing. Any desired type of power pump may be employed. I preferably employ a pump comprising two spur gears 55 and 56, meshing together within a closely fitting chamber in the pump casing, one of said gears be ing mounted directly upon the lower end of the driving shaft 54. A section of flexible conduit 57 is preferably employed outside of the container 15, and connected directly or indirectly to the elbowv 31 either to direct the flow from the pump into other portable containers, or to discharge the fluid asphaltum directly to the point where itis to be applied to'the road.

In the modification Fig. 2 I have illustrated a section of flexible conduit 59 to take the place of the rigid pipe section 40 shown in Fig. 1.

The pump casing 36 is designed to be submerged in the more or less heated asphaltum within the container 15, and preferably in the central or upper portion thereof, and to be kept sufficiently heated by reason of such submersion to enable the pump to be readily operated when required, and to automatically seal all the pump joints and to bring the discharge conduit from the pump over the rim of the container, and thereby avoid tapping the container with a discharge conduit below the surface level of the asphaltum in the container, which would permit more or less leakage'and waste, and might through accident result in the escape 'of practically all of the asphaltum from the container. The pump and its support are adapted at any time to be detached from one container and applied to another container, or stored awa until again required for use. As illustrated in Fig. 1 the pump 36 is supported at a uniform distance from its supporting frame by means of the substantially rigid pipe section 34'and this distance can only be changed by changing the length of pipe section 34. In the modification Fig. 3 the discharge end. of the pump 36 is connected by means of a flexible or adjustable pipe section 65, which permits the pump to be adjusted vertically to different positions relative to its supporting frame. Inthis modificationthe pump is supported from its supporting frame by means of a vertical rod 66, which is threaded into a boss 67 attached to the pump casing, and which is adj'ustably mounted relative to the cross bar 68, corresponding to the cross bar 24 of Fig. 1 by being clamped ina split sleeve 69 bymeans of clamping bolts70 which are adapted to be loosened and the rod adjusted endwise of the sleeve 69 after which the bolts 70 are again clamped tight. In order to permit this vertical adjustment of the pump relative to its deep supporting frame and the container 15, the upper end of the shaft 72 corresponding to shaft 54 of Fig. 1, is splined and keyed to the beveled gear! 3 so as to be adjustable endwise through the gear 73, whichgear is journaled to the cross-bar 68. by means of its tubular hub 75, to the lower cndof which a nut 76 is threaded. The pump itself is thus adapted to be adjusted vertically relative to its supporting frame and to the container, depending upon the amount of asphaltum contained in the container, andis adapted to use on or shallow containers. The shoe 22 in each of the modifications is shown attached to the rods 19 and 20 by means of set screws 78, which enable the shoe 22 to be adjusted along the rods 19 and 20 to different positions to adapt the supporting frame to be used on relatively wide or narrow containers.

My improved apparatus is adapted to be employed to pump soap greases, heavy oils,

and other similar substances as well. asasphaltum. If desired the members 40, 41, 42, 43 and 44 of Fig. 3 may be omitted.

The apparatus herein shown and described is capable of considerable modification within the scope of the claims without departing from the spirit of my invention.

That I claimis:

1. In an apparatus for pumping asphaltum and similar substances normally semi-solid at atmospheric temperatures, comprisin a fluid container, a pump supporting mem er adapted to be supported upon said container,

'21 fluid pump supported by said pump supporting member within said container in position to be submerged in the contents of sald container, a fluid discharge conduit leading from said pump and having a portion extend ing over the rim of said container, pump actuating means carried by said pump supporting means and adapted to be operated from the exterior of said container, and means for raising the pump without raising the height of the rimportion of said discharge conduit. p

, 2. In an apparatus for pumping asphaltum and similar substances normally semi solid at atmospheric temperatures, comprism a fluid container, a pump supporting mem er adapted to be supported upon said container,

a fluid pump supported by said pump supporting member within said container in position to be submerged in the contents of said container, a fluid discharge conduit leading from said. pump and havinga portion extending over the rim of said container, and supported thereby, and" pump actuating means carried by said pump su porting means and adapted to be operated mm the exterior of said container.

3; In an apparatus for pumping asphaltum and similar substances normally semi-solid .at atmospheric temperatures comprisin a fluid container, 9. pump supporting mem adapted to be supported upon said container,

a fluid pump supported by said'pump sup-' porting member within said container in position to be submerged in the contents of said 1 container, a conduit having one end adapted to rest on the bottom of the container and its other end leading through the contents of the fluid container and connected to said fluid pump, a fluid discharge conduit lead- In testimony whereof I have aflixed my signature.

- HERMAN H. STRIETMANN. 

